phelps



(No Model.) 2 Sheets-Sheet 1. R. K. SWIFT & L. E. PHELPS.

DISK HARROW.

Patented Jan. 6, 1885.

F QM J g w G (No Model.) 2 Sheets-Sheet 2. R. K. SWIFT & L. E. PHELPS.

DISK HARROW.

No. 310,475. Patented Jan. 6, 1885.

ll 11 v l i w. PETERS. PholwLllhagr-Iphen Washinglnu. n. c

UNITED STATES R. K. SW'IFT AND LYMAN E. PHELPS,

OF ONE-THIRD TO J. J A.

PATENT OFFI E.

DlSK-HARROW.

SPECIFICATION forming part of Letters Patent No. 310,475, dated January 6,1885.

A pplieulion filed July 19,1854.

T aZZ 1072/0712 it may concern:

Be it known that we, R. K. SWIFT and LY- MAN E. PHELPS, citizens of the United States,

residing at Rochelle, in the couny of Ogle and State of Illinois, have invented certain new and useful Improvements in Disk-Harrows, of which the following is a specification.

Our invention relates to the construction of disk or wheel harrows, and the iirst part of our invention relates to devices whereby the gangs of such harrows are adjusted, the see ond to a novel construction of theaxles of such barrows, and the third to certain mechanism for operating the disk-scrapers.

The first of our improvements consists in combining with each gang of disks a separate adjusting device, whereby the gangs may be separately adjusted to difi'erent positions relative to the line of draft. A feature of this 2c part of our improvement consists in a construction of the draft-frame and draft-rods whereby the inner ends of the gangs are prevented ironi rising out of the ground.

YVe have also improved the construction of the devices whereby the disks are secured at proper intervals upon the axle of the gangs.

, This improvement consists in spacing the disks at suitable intervals upon a non-rotating axle by means of spools and clamp-rods having suitable washers, whereby a long bearing is secured.

Another feature of our invention relates to a novel construction of the scrapers for cleaning the disks, and the combination with said 5 scrapers of couplings or links, through which motion is communicated from one scraper to another throughout the series.

In the accompanying drawing, Figure l is a plan view of a disk-barrow containing our 0 improvements. Fig. 2 is a front elevation thereof. Fig. 3 is a detail view showing the devices for preventing the gangs from rising out of the ground. Fig. 4: is a section taken on line 4 4: of Fig. 1. Fig. 5 is a rearelevation of the machine, designed particularly to show the construction of the disk-scrapers, and also showing, partly in'section, the construction of the devices for securing the disks upon the axle. Fig. 6 is a detail view de (No model.)

{signed to show the gang-axles in two posi- 5o tions, one position being shown in dotted lines. As before stated, we provide each gang of disks with a separate adjusting device. Said device comprises a vertical lever, A, connected at its lower end to a swing-bar, B, the latter being attached to and operating a horizontal link, 0, said link being attached at its rear end to the gangaxle. \Ve prefor to attach links G to the axle, at a point about midway of the length of the latter, and to have said links extend forward parallel to the tongue. The forward ends of said links slide in ways formed by castings bolted to the under side of the cross-bar l). The swing-bars B may be bent so as to pass under the axle, while the links G pass over the axle, and the two are secured to a box, E, surrounding the axle. The levers A may be located upon bar D at any I point between its outer ends and the tongue in reach of the drivers seat. These levers are provided with ordinary locking devices. The swing-bar I3 is added to allow link 0 to move parallel to the ground, and to prevent the rocking of the cross-bar D. The inner ends of the gang-axles are connected to the frame by means of draft-rods F F, the rear ends of these rods being connected with the axles through hangers f. Ve prefer to construct these draft-rods of'bar-iron set edgewise to the ground, to connect them So in front to the under side of the bar D,and to have them rest against the under sides of frametimbers such as G G. When so construeted, the frame-tin1bers serve as a positive stop to prevent the inner ends of the axle ris- 8 5 ing out of the ground. As each gang of disks is free to rise and fall at either end, there is likely to be considerable chafing of the opposing ends of the axles, unless they be held out of contact. \Ve therefore insert aboss or pin, 0 II, between the draft-rods F, at such a point that the rods will bear upon said boss before the ends of the axle come in contact. Atrt angular or wedge-shaped piece or casting, T, slotted through its vertical center, is placed 5 between the draft-rods F and the frame-tint ber G, extending across from one draft-rod to the other, so as to rest on both, and is held in place by the bolt H, passing through it vertically. By moving this wedge-shaped casting forward the depth to which the disks penetrate may be regulated. The connection of the draft-rods, both at their rear and forward ends, should be such that the gangs will be free to rise and fall at either end and to swing forward and back as the adjustingrods are operated.

The next feature of our invention relates to the manner of securing the disks upon the axles. Ve prefer to employ a non-rotating axle and to secure the disks thereon insets of three each, as shownin the drawings, particularly in Fig. 5; but the sets may consist of any greater or less number of disks.

I is the axle, which is rigidly secured at either end to hangers J. We first place upon thisaxle a washer, K, next a disk, L, then a cast spacing-spool,M,having bosses m. These spools M perform a double function in this construction-viz., they space the disks at proper intervals upon the axles and form the bearings of the axles. It is quite desirable that a long bearing should be provided for machines of this sort, and that such bearing should be constructed in parts of such length that they may be easily removed and replaced at trifling expense. fence the importance of the use of the spool. The bosses at of the spools M have bolt-holes which correspond to bolt-holes in the disks L. Clamp-rods N pass through the holes of both the bosses and the disks and are secured by nuts 12.

The scrapers and the devices for operating them are shown in Fig. 5. The scrapers (marked 0 in the drawings) are pivoted to the rear side of the top planks. They have arms 0 projecting from their upper ends at right angles. These arms 0 have bearings formed in each end, and said bearings receive the ends of a coupling or link, P, forming a knuckle-joint. The' ends'of these links have sufficient play in the bearings to enable them to rock slightly therein, but are fitted close enough, so that when said coupling is rocked it operates to shift each of the scrapers with which it is connected, causing them to come into contact with the disks. The form of the particular formsdescribed.

We claim 1. The combination, in a disk-harrow havin g two disk-gan gs attached to the main frame at their inner ends, respectively, of an adjusting-lever, a swing-bar operated by said lever, and a horizontally-moving link or bar connected at its rear end to the gangaXles, at

or near the center of the latter, and having its forward end adapted to slide in suitable ways on the under side of the draft-bar, substantially as described.

2. The combination, in a diskharrow, of a draft-frame, gang-axles, and rods connecting the inner ends of the gang-axles with the frame, and adapted to hold the same at a certain fixed distance back therefrom, and to en gage with frame timbers 01" stops, whereby the inner ends of the gangs are prevented from being raised out of the ground, and separate adjusting devices for each gan g,eomprisin g an operatinglever and a connecting link or links connected to the gang-axle at'or near its cen ter, substantially as described.

3. The combination, in a disk-harrow, of a draftframe, gang-axles, rods connecting the inner ends of the gang-axles with the frame, and a slotted wedge or plug inserted between the rods and the draft bar or tongue,whereby the depth of the inner ends of the disk-gangs can be regulated, substantially as described.

4. In a disk-barrow, the combination, with a non-rotating axle and a series of disks, of spools spacing the disks upon the axle and forming bearings for the latter, and clamprods N and washers, substantially as and for the purpose described.

R. K. SXVIFT.

LYMAN E. PHELPS. \Vitnesses:

J 01m '1. li-rnrrs,

W. H. Ynllnwsnaw.

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